The released promo video for the next "How I Met Your Mother" Season 9 episode teased that it will be a jam-packed one. Well, jam-packed with emotions as well as hilarity with Robin (Cobie Smulders) and Barney's (Neil Patrick Harris) wedding ceremony just hours away in the upcoming Episode 19 titled "Vesuvius."

The synopsis for Episode 19 in the Carter Matt report reads: "On the morning of the wedding, Lily and Robin have a fight and Barney freaks out about which suit to wear. Meanwhile, the gang watches a movie Ted has forbidden them to see."

In the promo video, Ted Mosby (Josh Radnor) can be seen getting exasperated with Barney who is totally freaking out on finding the perfect suit that he will wear to his wedding. "Say yes to the suit!" Ted screams but Barney answers he can't with a pained look on his face.

It looks like Lily and Robin's fight has something to do with hockey making Robin declare that she is experiencing the best day of her life. The bride can be also seen in the promo video saying: "It's just a wedding, who cares what people wear?"

Credit: YouTube/XonePro

According to the Hollywood Hills report, "Pretty Little Liars" actress Lucy Hale returns as Robin's sister Katie as well as Chris Kattan with Jon Heder guest starring as Narshall. As for the movie that Ted has forbidden his friends to see, the Carter Matt report suggests it has something to with Ted's history with Stella (Sarah Chalke). "References galore for 'The Wedding Bride'," the report reads.

Barney may be having a hard time picking a suit in the upcoming episode but at least, he is not that hung over for the ceremony. Hopefully, Lily and Robin's fight in "Vesuvius" will be resolved before the episode ends.

"How I Met Your Mother" Season 9 returns with the brand new Episode 19 titled "Vesuvius" which is scheduled to air on Monday night, March 3, at 9 pm central time on CBS. The time to say goodbye to the HIMYM gang is getting closer as the sitcom's two-part finale episode "Last Forever" has been set to be aired on March 31, 2014.

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